Resolve an issue causing intermittent display flickering on MacBook Air.Resolve an issue where MacBook Air may boot up when MagSafe Adapter is attached.Resolve an issue that prevents transfer of your data, settings, and compatible applications to a new Mac running OS X Lion.Improve the reliability of Wi-Fi connections.Resolve an issue that may cause system audio to stop working when using HDMI or optical audio out.Address an issue that may cause the system to become unresponsive when playing a video in Safari.The OS X Lion v10.7.4 Update includes Safari 5.1.6, which contains stability improvements.Īll Mac users should perform a backup before installing system software updates, initiating a manual backup with Time Machine is just a matter of right-clicking a drive.The 10.7.1 update is recommended for all users running OS X Lion and includes general operating system fixes that enhance the stability and compatibility of your Mac, including fixes that:.Improve the reliability of binding and logging into Active Directory accounts.Include RAW image compatibility for additional digital cameras.Enable automatic login for NIS accounts.Improve performance when connecting to a WebDAV server.

Improve printing to an SMB print queue.Address an issue that may prevent files from being saved to an SMB server.Improve using a proxy auto-configuration (PAC) file.Improve Internet sharing of PPPoE connections.Addresses permission issues that may be caused if you use the Get Info inspector function “Apply to enclosed items…” on your home directory.Improve compatibility with certain British third-party USB keyboards.Resolve an issue in which the “Reopen windows when logging back in” setting is always enabled.The complete change log for 10.7.4 client is as follows: These are direct download links from Apple servers, each file is a DMG.

Direct download links are below, though most users should upgrade through Software Update to keep things simple. OS X Lion users can download the OS X 10.7.4 update directly via Software Update from the  Apple menu, the update weighs in around 730MB.

Os x lion update